Patent GB-190225531-A (GB)
Title: Improvements in and connected with Machines for Cleaning Printing Machine Rollers.
Inventor: CLEATHERO EDWARD THOMAS
Filed: 1902-11-20
Granted: 1903-10-22
Abstract: 25,531. Cleathero, E. T. Nov. 20. Cleaning inking-rollers.-Relates to machines for cleaning the inking-rollers of lithographic and typographic printing-machines, and consists (1) in the provision of one or more pairs of washing, rinsing, or drying rollers rotated s de by side in the same direction at different speeds, and between which the inking-roller rests, and (2) in the provision of an intermittent feeding-device in machines fitted with two or three such pairs of rollers, or one such pair and one or two single rollers, or two such pairs and a single roller. In the machine shown m Fig. 1, a pair of washing, rinsing, or drying rollers 13, 14 is mounted over a trough 10, supported between standards 1, 2, and provided with a draw-off pipe 11. Each roller shaft 16 carries a spur-wheel 19 meshing with a spur-wheel 20 on a shaft 5 provided with fast and loose pulleys 6, 7. The wheels 19 are of different size, whereas the rollers 13, 14 are of equal size. The inking-roller 21 rests between the rollers 13, 14. A squeezing or rinsing roller 22 is mounted below the rollers 13, 14 in brackets 25, 26 provided with adjusting-screws 27, 28 and set-screws 29, 30. For washing uneven inking-rollers, one end bearing 17<a> of one of the rollers 13,. 14 is arranged to slide between the top of the standard 2 and a cap plate. The bearing rests at the inner side against a spring provided with a fixed core, and is provided at the outer side with an adjusting-screw and hand-disc 38. In the machine shown in Fig. 6, there are a pair of washing-rollers 56, 57, a single drying-roller 75, and a feeding-device 91. The shafts of the rollers 56, 57 are received at one end in sockets of spindles carrying spur-wheels engaging an intermediate gear wheel meshing with the pinion on the pulley shaft. The roller 75 is driven from the intermediate gear wheel through a second gear wheel and a wheel on the roller shaft. A squeezing-roller 81 provided with an adjusting-screw 87 is mounted below the roller 75. A removable drip plate 89 is hung behind the roller 75 from a tie-rod 42 of the machine framing. The feeding-device 91 consists of two cross-shaped plates mounted on an axle 93 and connected by tie-rods 92 carrying S-hooks or supports 98 for the inking-rollers 99. The device is rotated, fed, and emptied by hand. The axle 93 is carried by a pair of levers 95 linked to a treadle 102, and one of the cross-shaped plates is provided with a square locking-device for engagement in a notched bracket on the machine framing when the treadle is not depressed. In the machine shown in Fig. 8, there are pairs of washing, rinsing, and drying rollers, corresponding fixed squeezing-rollers, and an automatic feeding-device. The rubbing action may be increased by reciprocating longitudinally one roller of the desired pair or pairs, and, for this purpose, the corresponding roller shaft or shafts are prolonged and fitted with collars for engagement with a fork or forks on an upstanding arm or arms of a horizontal shaft, another arm of which is connected by a rod 161 to an eccentric pin 160 at the ed of a shaft 159, which is geared to the main shaft 111. The inking- rollers 171 are placed on an inclined feed-table 169, and are fed to the cleaning-rollers and out to a delivery table 191 by means of a detent roller 172 and revolving rods 178, 179, 180. The roller 172 is provided with grooves 173 for receiving the inking-rollers 171, and the roller shaft 175 carries a ratchet-wheel 174 co operating with a gravity pawl 176 tripped by the rod 178. When the pawl is tripped, the weight of the roller 171 in the top groove 173 causes the roller 172 to turn and deliver that roller 171. The rods 178, 179, 180 are revolved at the same speed, and are carried, respectively, by arms on transverse shafts 183, 184 and the shaft 159, which are geared together and to the main shaft 111. A divided trough is disposed below the cleaning rollers, and is provided with extensions 177, 189, 190 for the passage of the inking-rollers.